/Engine/Source/Runtime/Engine/Public/Animation/AnimCurveTypes.h
Set value of curve named InName to InValue. Inserts a new value if an element for InName does not already exist. Note that this performs a binary search per-call and can potentially cause a re-sort. Consider using a combiner operation to set multiple element's values.
void Set ( [FName](API\Runtime\Core\UObject\FName) InName, float InValue )